ISD-T360 ETC [List of Unclassifed Manufacturers], ISD-T360 Datasheet - Page 94

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ISD-T360

Manufacturer Part Number
ISD-T360
Description
VoiceDSP Digital Speech Processor with Master/Slave, Full-Duplex Speakerphone, Multiple Flash and ARAM/DRAM Support
Manufacturer
ETC [List of Unclassifed Manufacturers]
Datasheet
2-54
17
24
26
60
61
Index
Energy Level:
DTMF_DET_MIN_ENERG
Y
Echo Canceler:
DTMF_DET_ECHO_DELA
Y
Twist Level:
DTMF_DET_REV_TWIST
SW AGC:
DTMF_DET_AGC_IDLE
SW AGC:
DTMF_DET_AGC_PLAY
Parameter Name
Table 2-6: TUNABLE PARAMETERS: DTMF Detection
Minimum energy level at which DTMF tones are detected. If
you divide (multiply) the value by 2, the detection sensitivity
decreases (increases) by 3 dB.
Legal values: 8 to 4096
The near-echo delay in samples. The sampling rate is 8000Hz
(i.e., 125 ms per sample).
Legal values: 0 to 16.
Controls the reverse twist level at which the VoiceDSP
processor detects DTMF tones. While the normal twist is set at 8
dB, the reverse twist can be either 4 dB (default) or 8 dB (if this
parameter is set to 1).
SW AGC for DTMF in idle/record modes. When incrementing
the tunable by 1, the dynamic range is increased by 3 dB.
Legal values: 0 to 5.
Software AGC for play mode and tone generation modes.
When incrementing the tunable by 1, the dynamic range
increases by 3 dB.
Legal values: 0 to 16.
Description
Voice Solutions in Silicon™
32
4
0
0
3
Default

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